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<h1>Coverage for <b>rest_framework/pagination</b> :
<span class='pc_cov'>100%</span>
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43 statements
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<p id='t1' class='pln'><span class='str'>"""</span><span class='strut'> </span></p>
<p id='t2' class='pln'><span class='str'>Pagination serializers determine the structure of the output that should</span><span class='strut'> </span></p>
<p id='t3' class='pln'><span class='str'>be used for paginated responses.</span><span class='strut'> </span></p>
<p id='t4' class='pln'><span class='str'>"""</span><span class='strut'> </span></p>
<p id='t5' class='stm run hide_run'><span class='key'>from</span> <span class='nam'>__future__</span> <span class='key'>import</span> <span class='nam'>unicode_literals</span><span class='strut'> </span></p>
<p id='t6' class='stm run hide_run'><span class='key'>from</span> <span class='nam'>rest_framework</span> <span class='key'>import</span> <span class='nam'>serializers</span><span class='strut'> </span></p>
<p id='t7' class='stm run hide_run'><span class='key'>from</span> <span class='nam'>rest_framework</span><span class='op'>.</span><span class='nam'>templatetags</span><span class='op'>.</span><span class='nam'>rest_framework</span> <span class='key'>import</span> <span class='nam'>replace_query_param</span><span class='strut'> </span></p>
<p id='t8' class='pln'><span class='strut'> </span></p>
<p id='t9' class='pln'><span class='strut'> </span></p>
<p id='t10' class='stm run hide_run'><span class='key'>class</span> <span class='nam'>NextPageField</span><span class='op'>(</span><span class='nam'>serializers</span><span class='op'>.</span><span class='nam'>Field</span><span class='op'>)</span><span class='op'>:</span><span class='strut'> </span></p>
<p id='t11' class='pln'> <span class='str'>"""</span><span class='strut'> </span></p>
<p id='t12' class='pln'><span class='str'> Field that returns a link to the next page in paginated results.</span><span class='strut'> </span></p>
<p id='t13' class='pln'><span class='str'> """</span><span class='strut'> </span></p>
<p id='t14' class='stm run hide_run'> <span class='nam'>page_field</span> <span class='op'>=</span> <span class='str'>'page'</span><span class='strut'> </span></p>
<p id='t15' class='pln'><span class='strut'> </span></p>
<p id='t16' class='stm run hide_run'> <span class='key'>def</span> <span class='nam'>to_native</span><span class='op'>(</span><span class='nam'>self</span><span class='op'>,</span> <span class='nam'>value</span><span class='op'>)</span><span class='op'>:</span><span class='strut'> </span></p>
<p id='t17' class='stm run hide_run'> <span class='key'>if</span> <span class='key'>not</span> <span class='nam'>value</span><span class='op'>.</span><span class='nam'>has_next</span><span class='op'>(</span><span class='op'>)</span><span class='op'>:</span><span class='strut'> </span></p>
<p id='t18' class='stm run hide_run'> <span class='key'>return</span> <span class='nam'>None</span><span class='strut'> </span></p>
<p id='t19' class='stm run hide_run'> <span class='nam'>page</span> <span class='op'>=</span> <span class='nam'>value</span><span class='op'>.</span><span class='nam'>next_page_number</span><span class='op'>(</span><span class='op'>)</span><span class='strut'> </span></p>
<p id='t20' class='stm run hide_run'> <span class='nam'>request</span> <span class='op'>=</span> <span class='nam'>self</span><span class='op'>.</span><span class='nam'>context</span><span class='op'>.</span><span class='nam'>get</span><span class='op'>(</span><span class='str'>'request'</span><span class='op'>)</span><span class='strut'> </span></p>
<p id='t21' class='stm run hide_run'> <span class='nam'>url</span> <span class='op'>=</span> <span class='nam'>request</span> <span class='key'>and</span> <span class='nam'>request</span><span class='op'>.</span><span class='nam'>build_absolute_uri</span><span class='op'>(</span><span class='op'>)</span> <span class='key'>or</span> <span class='str'>''</span><span class='strut'> </span></p>
<p id='t22' class='stm run hide_run'> <span class='key'>return</span> <span class='nam'>replace_query_param</span><span class='op'>(</span><span class='nam'>url</span><span class='op'>,</span> <span class='nam'>self</span><span class='op'>.</span><span class='nam'>page_field</span><span class='op'>,</span> <span class='nam'>page</span><span class='op'>)</span><span class='strut'> </span></p>
<p id='t23' class='pln'><span class='strut'> </span></p>
<p id='t24' class='pln'><span class='strut'> </span></p>
<p id='t25' class='stm run hide_run'><span class='key'>class</span> <span class='nam'>PreviousPageField</span><span class='op'>(</span><span class='nam'>serializers</span><span class='op'>.</span><span class='nam'>Field</span><span class='op'>)</span><span class='op'>:</span><span class='strut'> </span></p>
<p id='t26' class='pln'> <span class='str'>"""</span><span class='strut'> </span></p>
<p id='t27' class='pln'><span class='str'> Field that returns a link to the previous page in paginated results.</span><span class='strut'> </span></p>
<p id='t28' class='pln'><span class='str'> """</span><span class='strut'> </span></p>
<p id='t29' class='stm run hide_run'> <span class='nam'>page_field</span> <span class='op'>=</span> <span class='str'>'page'</span><span class='strut'> </span></p>
<p id='t30' class='pln'><span class='strut'> </span></p>
<p id='t31' class='stm run hide_run'> <span class='key'>def</span> <span class='nam'>to_native</span><span class='op'>(</span><span class='nam'>self</span><span class='op'>,</span> <span class='nam'>value</span><span class='op'>)</span><span class='op'>:</span><span class='strut'> </span></p>
<p id='t32' class='stm run hide_run'> <span class='key'>if</span> <span class='key'>not</span> <span class='nam'>value</span><span class='op'>.</span><span class='nam'>has_previous</span><span class='op'>(</span><span class='op'>)</span><span class='op'>:</span><span class='strut'> </span></p>
<p id='t33' class='stm run hide_run'> <span class='key'>return</span> <span class='nam'>None</span><span class='strut'> </span></p>
<p id='t34' class='stm run hide_run'> <span class='nam'>page</span> <span class='op'>=</span> <span class='nam'>value</span><span class='op'>.</span><span class='nam'>previous_page_number</span><span class='op'>(</span><span class='op'>)</span><span class='strut'> </span></p>
<p id='t35' class='stm run hide_run'> <span class='nam'>request</span> <span class='op'>=</span> <span class='nam'>self</span><span class='op'>.</span><span class='nam'>context</span><span class='op'>.</span><span class='nam'>get</span><span class='op'>(</span><span class='str'>'request'</span><span class='op'>)</span><span class='strut'> </span></p>
<p id='t36' class='stm run hide_run'> <span class='nam'>url</span> <span class='op'>=</span> <span class='nam'>request</span> <span class='key'>and</span> <span class='nam'>request</span><span class='op'>.</span><span class='nam'>build_absolute_uri</span><span class='op'>(</span><span class='op'>)</span> <span class='key'>or</span> <span class='str'>''</span><span class='strut'> </span></p>
<p id='t37' class='stm run hide_run'> <span class='key'>return</span> <span class='nam'>replace_query_param</span><span class='op'>(</span><span class='nam'>url</span><span class='op'>,</span> <span class='nam'>self</span><span class='op'>.</span><span class='nam'>page_field</span><span class='op'>,</span> <span class='nam'>page</span><span class='op'>)</span><span class='strut'> </span></p>
<p id='t38' class='pln'><span class='strut'> </span></p>
<p id='t39' class='pln'><span class='strut'> </span></p>
<p id='t40' class='stm run hide_run'><span class='key'>class</span> <span class='nam'>DefaultObjectSerializer</span><span class='op'>(</span><span class='nam'>serializers</span><span class='op'>.</span><span class='nam'>Field</span><span class='op'>)</span><span class='op'>:</span><span class='strut'> </span></p>
<p id='t41' class='pln'> <span class='str'>"""</span><span class='strut'> </span></p>
<p id='t42' class='pln'><span class='str'> If no object serializer is specified, then this serializer will be applied</span><span class='strut'> </span></p>
<p id='t43' class='pln'><span class='str'> as the default.</span><span class='strut'> </span></p>
<p id='t44' class='pln'><span class='str'> """</span><span class='strut'> </span></p>
<p id='t45' class='pln'><span class='strut'> </span></p>
<p id='t46' class='stm run hide_run'> <span class='key'>def</span> <span class='nam'>__init__</span><span class='op'>(</span><span class='nam'>self</span><span class='op'>,</span> <span class='nam'>source</span><span class='op'>=</span><span class='nam'>None</span><span class='op'>,</span> <span class='nam'>context</span><span class='op'>=</span><span class='nam'>None</span><span class='op'>)</span><span class='op'>:</span><span class='strut'> </span></p>
<p id='t47' class='pln'> <span class='com'># Note: Swallow context kwarg - only required for eg. ModelSerializer.</span><span class='strut'> </span></p>
<p id='t48' class='stm run hide_run'> <span class='nam'>super</span><span class='op'>(</span><span class='nam'>DefaultObjectSerializer</span><span class='op'>,</span> <span class='nam'>self</span><span class='op'>)</span><span class='op'>.</span><span class='nam'>__init__</span><span class='op'>(</span><span class='nam'>source</span><span class='op'>=</span><span class='nam'>source</span><span class='op'>)</span><span class='strut'> </span></p>
<p id='t49' class='pln'><span class='strut'> </span></p>
<p id='t50' class='pln'><span class='strut'> </span></p>
<p id='t51' class='stm run hide_run'><span class='key'>class</span> <span class='nam'>PaginationSerializerOptions</span><span class='op'>(</span><span class='nam'>serializers</span><span class='op'>.</span><span class='nam'>SerializerOptions</span><span class='op'>)</span><span class='op'>:</span><span class='strut'> </span></p>
<p id='t52' class='pln'> <span class='str'>"""</span><span class='strut'> </span></p>
<p id='t53' class='pln'><span class='str'> An object that stores the options that may be provided to a</span><span class='strut'> </span></p>
<p id='t54' class='pln'><span class='str'> pagination serializer by using the inner `Meta` class.</span><span class='strut'> </span></p>
<p id='t55' class='pln'><span class='strut'> </span></p>
<p id='t56' class='pln'><span class='str'> Accessible on the instance as `serializer.opts`.</span><span class='strut'> </span></p>
<p id='t57' class='pln'><span class='str'> """</span><span class='strut'> </span></p>
<p id='t58' class='stm run hide_run'> <span class='key'>def</span> <span class='nam'>__init__</span><span class='op'>(</span><span class='nam'>self</span><span class='op'>,</span> <span class='nam'>meta</span><span class='op'>)</span><span class='op'>:</span><span class='strut'> </span></p>
<p id='t59' class='stm run hide_run'> <span class='nam'>super</span><span class='op'>(</span><span class='nam'>PaginationSerializerOptions</span><span class='op'>,</span> <span class='nam'>self</span><span class='op'>)</span><span class='op'>.</span><span class='nam'>__init__</span><span class='op'>(</span><span class='nam'>meta</span><span class='op'>)</span><span class='strut'> </span></p>
<p id='t60' class='stm run hide_run'> <span class='nam'>self</span><span class='op'>.</span><span class='nam'>object_serializer_class</span> <span class='op'>=</span> <span class='nam'>getattr</span><span class='op'>(</span><span class='nam'>meta</span><span class='op'>,</span> <span class='str'>'object_serializer_class'</span><span class='op'>,</span><span class='strut'> </span></p>
<p id='t61' class='pln'> <span class='nam'>DefaultObjectSerializer</span><span class='op'>)</span><span class='strut'> </span></p>
<p id='t62' class='pln'><span class='strut'> </span></p>
<p id='t63' class='pln'><span class='strut'> </span></p>
<p id='t64' class='stm run hide_run'><span class='key'>class</span> <span class='nam'>BasePaginationSerializer</span><span class='op'>(</span><span class='nam'>serializers</span><span class='op'>.</span><span class='nam'>Serializer</span><span class='op'>)</span><span class='op'>:</span><span class='strut'> </span></p>
<p id='t65' class='pln'> <span class='str'>"""</span><span class='strut'> </span></p>
<p id='t66' class='pln'><span class='str'> A base class for pagination serializers to inherit from,</span><span class='strut'> </span></p>
<p id='t67' class='pln'><span class='str'> to make implementing custom serializers more easy.</span><span class='strut'> </span></p>
<p id='t68' class='pln'><span class='str'> """</span><span class='strut'> </span></p>
<p id='t69' class='stm run hide_run'> <span class='nam'>_options_class</span> <span class='op'>=</span> <span class='nam'>PaginationSerializerOptions</span><span class='strut'> </span></p>
<p id='t70' class='stm run hide_run'> <span class='nam'>results_field</span> <span class='op'>=</span> <span class='str'>'results'</span><span class='strut'> </span></p>
<p id='t71' class='pln'><span class='strut'> </span></p>
<p id='t72' class='stm run hide_run'> <span class='key'>def</span> <span class='nam'>__init__</span><span class='op'>(</span><span class='nam'>self</span><span class='op'>,</span> <span class='op'>*</span><span class='nam'>args</span><span class='op'>,</span> <span class='op'>**</span><span class='nam'>kwargs</span><span class='op'>)</span><span class='op'>:</span><span class='strut'> </span></p>
<p id='t73' class='pln'> <span class='str'>"""</span><span class='strut'> </span></p>
<p id='t74' class='pln'><span class='str'> Override init to add in the object serializer field on-the-fly.</span><span class='strut'> </span></p>
<p id='t75' class='pln'><span class='str'> """</span><span class='strut'> </span></p>
<p id='t76' class='stm run hide_run'> <span class='nam'>super</span><span class='op'>(</span><span class='nam'>BasePaginationSerializer</span><span class='op'>,</span> <span class='nam'>self</span><span class='op'>)</span><span class='op'>.</span><span class='nam'>__init__</span><span class='op'>(</span><span class='op'>*</span><span class='nam'>args</span><span class='op'>,</span> <span class='op'>**</span><span class='nam'>kwargs</span><span class='op'>)</span><span class='strut'> </span></p>
<p id='t77' class='stm run hide_run'> <span class='nam'>results_field</span> <span class='op'>=</span> <span class='nam'>self</span><span class='op'>.</span><span class='nam'>results_field</span><span class='strut'> </span></p>
<p id='t78' class='stm run hide_run'> <span class='nam'>object_serializer</span> <span class='op'>=</span> <span class='nam'>self</span><span class='op'>.</span><span class='nam'>opts</span><span class='op'>.</span><span class='nam'>object_serializer_class</span><span class='strut'> </span></p>
<p id='t79' class='pln'><span class='strut'> </span></p>
<p id='t80' class='stm run hide_run'> <span class='key'>if</span> <span class='str'>'context'</span> <span class='key'>in</span> <span class='nam'>kwargs</span><span class='op'>:</span><span class='strut'> </span></p>
<p id='t81' class='stm run hide_run'> <span class='nam'>context_kwarg</span> <span class='op'>=</span> <span class='op'>{</span><span class='str'>'context'</span><span class='op'>:</span> <span class='nam'>kwargs</span><span class='op'>[</span><span class='str'>'context'</span><span class='op'>]</span><span class='op'>}</span><span class='strut'> </span></p>
<p id='t82' class='pln'> <span class='key'>else</span><span class='op'>:</span><span class='strut'> </span></p>
<p id='t83' class='stm run hide_run'> <span class='nam'>context_kwarg</span> <span class='op'>=</span> <span class='op'>{</span><span class='op'>}</span><span class='strut'> </span></p>
<p id='t84' class='pln'><span class='strut'> </span></p>
<p id='t85' class='stm run hide_run'> <span class='nam'>self</span><span class='op'>.</span><span class='nam'>fields</span><span class='op'>[</span><span class='nam'>results_field</span><span class='op'>]</span> <span class='op'>=</span> <span class='nam'>object_serializer</span><span class='op'>(</span><span class='nam'>source</span><span class='op'>=</span><span class='str'>'object_list'</span><span class='op'>,</span> <span class='op'>**</span><span class='nam'>context_kwarg</span><span class='op'>)</span><span class='strut'> </span></p>
<p id='t86' class='pln'><span class='strut'> </span></p>
<p id='t87' class='pln'><span class='strut'> </span></p>
<p id='t88' class='stm run hide_run'><span class='key'>class</span> <span class='nam'>PaginationSerializer</span><span class='op'>(</span><span class='nam'>BasePaginationSerializer</span><span class='op'>)</span><span class='op'>:</span><span class='strut'> </span></p>
<p id='t89' class='pln'> <span class='str'>"""</span><span class='strut'> </span></p>
<p id='t90' class='pln'><span class='str'> A default implementation of a pagination serializer.</span><span class='strut'> </span></p>
<p id='t91' class='pln'><span class='str'> """</span><span class='strut'> </span></p>
<p id='t92' class='stm run hide_run'> <span class='nam'>count</span> <span class='op'>=</span> <span class='nam'>serializers</span><span class='op'>.</span><span class='nam'>Field</span><span class='op'>(</span><span class='nam'>source</span><span class='op'>=</span><span class='str'>'paginator.count'</span><span class='op'>)</span><span class='strut'> </span></p>
<p id='t93' class='stm run hide_run'> <span class='nam'>next</span> <span class='op'>=</span> <span class='nam'>NextPageField</span><span class='op'>(</span><span class='nam'>source</span><span class='op'>=</span><span class='str'>'*'</span><span class='op'>)</span><span class='strut'> </span></p>
<p id='t94' class='stm run hide_run'> <span class='nam'>previous</span> <span class='op'>=</span> <span class='nam'>PreviousPageField</span><span class='op'>(</span><span class='nam'>source</span><span class='op'>=</span><span class='str'>'*'</span><span class='op'>)</span><span class='strut'> </span></p>
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